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OWNER’S MANUAL DPA 4410 POWER AMPLIFIER Features 4 x 100 W output capacity off ground potential 100 V outputs (internally configurable to 70 V/50 V or 4 ohms) all outputs are protected against floating (no load) and short-circuit mains supply 115/230 V AC or battery operation 24 V DC...
IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintance (servicing) instructions in the...
The POWER switch (9) on the rear of the amplifier is meant only for service purposes. If this switch is engaged, the remote power-off function of the appliance is not operational and the STANDBY indicator provides no indication. The DPA 4410 is equipped with a cut-in delay of approximately 3 seconds to efficiently suppress power-on noise.
5. OUTPUTS POWER OUTPUT All power outputs are balanced and off ground potential. The outputs are presetted by DYNACORD for the connection of 100 V speaker systems. The connection is achieved through plugging the 8-pole socket into the connection strip (17). Using the output transformer switch, the output voltage can be changed to 70 V, 50 V and 20 V (see also paragraph 8).
4 ohms and that the individual power handling capacity of each speaker is not exceeded. Free combination of the DPA 4410’s power output voltages, including mixed 100 V and low impedance (4 ohms) operation, is possible.
8. SETTING THE OUTPUT VOLTAGE (only by qualified service personal) The DPA 4410 provides output voltages of either 20 V, 50 V, 70 V, or 100 V. The output voltage is preset to 100 V. Changing the output voltage to a value of 20 V, 50 V, or 70 V should only be carried out by authorized DYNACORD service personal.
20 V 70 V 50 V 100 V Diagram 7 Changing the output transformer’s 354030 output voltage 9. ADDITIONAL FUNCTIONS AND FEATURES NRS 90206 pilot tone surveillance Using the extension kit NRS 90206, the amplifier channels are automatically and continuously monitored. This is achieved by sending an ultra low-level 19 kHz pilot tone through the device.
– or a wrongly connected cable, possibly resulting in malfunctioning. Whenever the DPA 4410 is operational or connected to an intact battery, the message “Ground Fault” is given out even with short-time ground fault occurrences (>5 sec). The ground fault message appears as collective fault message at the READY relay’s off-potential contact on the REMOTE CONTROL D-Sub...
Do not operate the DPA 4410 without its enclosure or without parts of the enclosure. When incorporating the DPA 4410 into a 19" flightcase or 19" rack system make sure, that there is sufficient air-flow. Between the amplifier’s rear plate and the back-wall of the surrounding enclosure there has to be at least a space of 60 mm x 330 mm up to the enclosures ventilation gaps.
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F 503 F 502 25 A 25 A F 504 T6.3A F 505 T6.3A F 506 T6.3A F 507 T6.3A Diagram 10 printed circuit board 85264.2 with inserted DC fuses F502 and F507 Changing the fuses F502 and F503: The battery fuses F 502 and F503 are located on the printed circuit board 85264.2, behind the AMP battery connections.
Weight 22.3 kg Colour anthracite Optional accessories for the DPA 4410: NRS 90206 pilot tone surveillance module (for four outputs) NRS 90207 ground fault surveillance module (for four outputs) NRS 90208 balanced input transformer module (for one input) SPECIFICATIONS OF THE OPTIONAL ACCESSORIES 13.1...
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